Section 3. Adjustment/Test
1.
General
These adjustment and test procedures are applicable to testing and adjusting the generator set after
major repair, major parts replacements, or overhaul.
2.
Testing the Generator Set
a. Pre-operational Test Procedures
(1)
Connect cables from the generator output terminals to a load bank. Use cables of the same size
and length as those to be used in service. Be sure the generator output N cable is grounded.
(2)
Check engine oil level. Oil should be at high bar on the dipstick.
(3)
Check radiator coolant level (See 2-2, Para. 5).
(4)
Check tension of drive belt (See 2-2, Para. 6)
.
(5)
If governor throttle linkage was disturbed, check all linkage to make certain engine speed may be
controlled when the engine is started. Refer to Paragraph 3, e, (1) and see Figure 3.
(6)
Inspect for oil, fuel and coolant leaks.
(7)
If the setting of the output voltage coarse adjustment potentiometer (36, Fig.1) on the voltage
regulator has been disturbed, set it at CENTER position (halfway between full clockwise position
and full counterclockwise position).
(8)
Check marker lights circuit breaker (33, Fig. 1) by pressing panel light push button switch (28)
.
If
panel lights (11, Fig. 1) operate, the circuit breaker, switch, and lamps are good.
(9)
Check fault indicating lights by pressing test/reset push button switch (19, Fig. 1)
.
If lights glow,
the control circuit breaker (34) and indicating lamps are good.
(10)
Make a general inspection of all wiring, and terminals. Inspect the equipment to be certain no
damage will result from starting the engine.
OM-2084 / Operation and Maintenance Manual
90CU24 / Series 500392 Generator Sets
November 27/1997
Chapter 2-3
Page 1
